US7764743B2 - Methods of channel coding for communication systems - Google Patents
Methods of channel coding for communication systems Download PDFInfo
- Publication number
- US7764743B2 US7764743B2 US11/197,306 US19730605A US7764743B2 US 7764743 B2 US7764743 B2 US 7764743B2 US 19730605 A US19730605 A US 19730605A US 7764743 B2 US7764743 B2 US 7764743B2
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- Prior art keywords
- bits
- stage
- rate matching
- rate
- parity
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
- H03M13/2957—Turbo codes and decoding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/63—Joint error correction and other techniques
- H03M13/6306—Error control coding in combination with Automatic Repeat reQuest [ARQ] and diversity transmission, e.g. coding schemes for the multiple transmission of the same information or the transmission of incremental redundancy
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/63—Joint error correction and other techniques
- H03M13/635—Error control coding in combination with rate matching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0064—Concatenated codes
- H04L1/0066—Parallel concatenated codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0098—Unequal error protection
Abstract
Description
TABLE 1 |
Parameter Definitions |
Nsys, in | denotes the number of systematic bits at the input of the |
HARQ block. | |
Np1, in | denotes the number of parity one bits at the input of the |
HARQ block. | |
Np2, in | denotes the number of parity two bits at the input of the |
HARQ block. | |
Nsys | denotes the number of systematic bits at the output of the |
first stage of rate matching, and is always equal to Nsys, in. | |
Np1 | denotes the number of parity one bits at the output of the |
first stage of rate matching. | |
Np2 | denotes the number of parity two bits at the output of the |
first stage of rate matching. | |
Nt, sys | denotes the number of systematic bits at the output of the |
second stage of rate matching. | |
Nt, p1 | denotes the number of parity one bits at the output of the |
second stage of rate matching. | |
Nt, p2 | denotes the number of parity two bits at the output of the |
second stage of rate matching. | |
|
represent the rate matching parameters for the |
e | |
minus, sys |
bits in the second stage of rate matching. |
eplus, sys |
|
|
represent the rate matching parameters for the parity one |
|
bits in the first stage of rate matching. |
eplus, p1 |
|
|
represent the rate matching parameters for the parity two |
|
bits in the first stage of rate matching. |
eplus, p2 |
|
|
represent the rate matching parameters for the parity one |
|
bits in the second stage of rate matching. |
eplus, p1 |
|
|
represent the rate matching parameters for the parity two |
|
bits in the second stage of rate matching. |
|
|
Nrow×Ncol
Where:
may denote the first systematic bit in column Ncol,s, and the bit
may denote the last systematic bit in column Ncol,e. Accordingly, the bit Nt,s
Nt,s
If Nt,s
e ini(N sys
The value of the rate matching state variable eini, at Nsys
e ini(N sys
In expression (10), and as discussed above, Nrow is the number of rows in the bit collection array, which is 2 for QPSK and 4 for 16-QAM.
If Nt,p
Selection of the Parity One Bits to be HARQ Encoded
e ini(N p1
The In the case of repetition, Np1
And the value of the rate matching state variable at Np1
e ini(N p1
Also, the value of the rate matching state variable at Nin p1
e ini(N in,p1
There is no repetition in the first stage of rate matching in the 3GPP standard.
As discussed above, there is no repetition in the first stage of rate matching.
Also, the value of the rate matching state variable, eini at Np2
e ini(N p2
In the case of repetition, Np2
And, the value of the rate matching state variable at Np2
e ini(N p2
In the case of repetition, Np2
The value of the rate matching state variable at Nin,p2
e ini(N in,p2
As discussed previously, there is no repetition in the first stage of rate matching.
There is no repetition in the first stage of rate matching.
N in :N 1 :N 2 =X 1 ·Y 1 :X 2 ·Y 2:1 (34)
TABLE 2 |
Rate matching state variable definitions |
e2(n): | the rate matching state variable of the second stage rate |
matching function after the input bit corresponding to | |
output bit n has been processed. | |
e2(n + 1): | the rate matching state variable of the second stage rate |
matching function after the input bit corresponding to | |
output bit (n + 1) has been processed. | |
e1(n): | the rate matching state variable of the first stage rate |
matching function after the input bit corresponding to | |
output bit n has been processed. | |
e1(n + 1): | the rate matching state variable of the first stage rate |
matching function after the input bit corresponding to | |
output bit (n + 1) has been processed. | |
e2 = e2(n)−(X2eminus |
X2−1 of which are punctured (404) |
If (e2 ≦ 0) (output of 406 is ‘YES’) |
{ |
e2(n + 1) = e2 + (eplus |
processed in |
Select bit (m + Z2) at the input to |
|
e1 = e1(n)−(XBeminus |
processed in |
If (e1 ≦ 0)(output of 414 is ‘YES’) | |
{ |
e1(n + 1) = e1 + (eplus |
bit is processed in |
Select bit (k + ZB) at the input to |
} | |
else e1(n + 1) = e1 (420) |
Select bit (k + XB) at the input to |
} |
else e2(n + 1) = e2 (output of 406 is ‘NO’, see 424) |
{ |
Select bit (m + X2) at the input to |
|
e1 = e1(n)−(XAeminus |
processed in |
If (e1 ≦ 0) output of 430 is ’YES’) | |
{ |
e1(n + 1) = e1 + (eplus |
bit is processed in |
Select bit (k + ZA) at the input to |
} | |
else e1(n + 1) = e1 (436) |
Select bit (k + XA) at the input to |
} |
In others words, m1 is determined as a function of the rate matching parameters for the second stage of rate matching, and k1 as a function of the rate matching parameters for the first stage of rate matching and m1.
e 2(1)=e ini
The rate matching state variable of the first stage after processing bit k1 may be given by expression (44):
e 1(1)=e ini
Claims (23)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/197,306 US7764743B2 (en) | 2005-08-05 | 2005-08-05 | Methods of channel coding for communication systems |
KR1020087002968A KR101280144B1 (en) | 2005-08-05 | 2006-07-21 | Methods of channel coding for communication systems |
CN200680028405XA CN101233692B (en) | 2005-08-05 | 2006-07-21 | Methods of channel coding for communication systems |
EP06788065.8A EP1911165B1 (en) | 2005-08-05 | 2006-07-21 | Methods of channel coding for communication systems |
JP2008525002A JP2009504086A (en) | 2005-08-05 | 2006-07-21 | Channel coding method for communication system |
PCT/US2006/028313 WO2007019012A1 (en) | 2005-08-05 | 2006-07-21 | Methods of channel coding for communication systems |
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US11/197,306 US7764743B2 (en) | 2005-08-05 | 2005-08-05 | Methods of channel coding for communication systems |
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US20070030917A1 US20070030917A1 (en) | 2007-02-08 |
US7764743B2 true US7764743B2 (en) | 2010-07-27 |
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US (1) | US7764743B2 (en) |
EP (1) | EP1911165B1 (en) |
JP (1) | JP2009504086A (en) |
KR (1) | KR101280144B1 (en) |
CN (1) | CN101233692B (en) |
WO (1) | WO2007019012A1 (en) |
Cited By (10)
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US20090037797A1 (en) * | 2007-07-30 | 2009-02-05 | Spencer Paul S | Rate matching for a wireless communications systems |
US20090111384A1 (en) * | 2005-08-18 | 2009-04-30 | Matsushita Electric Industrial Co., Ltd. | Wireless communication terminal apparatus and cqi selecting method |
US20090282311A1 (en) * | 2008-05-09 | 2009-11-12 | Jungwon Lee | Symbol vector-level combining receiver for incremental redundancy harq with mimo |
US20100115361A1 (en) * | 2007-01-05 | 2010-05-06 | Zte Corporation | Equipment and a method for bit collection in hybrid automatic repetition request |
US20110080975A1 (en) * | 2008-06-24 | 2011-04-07 | Panasonic Corporation | Mimo transmitting apparatus, mimo receiving apparatus, mimo transmission signal formation method, and mimo transmission signal separation method |
US20110197103A1 (en) * | 2007-12-17 | 2011-08-11 | Electronics And Telecommunications Research Institute | Decoding method and apparatus of retransmission communication system |
US20110276767A1 (en) * | 2010-05-03 | 2011-11-10 | Mindspeed Technologies, Inc. | Rate Matching and De-Rate Matching on Digital Signal Processors |
US20130007382A1 (en) * | 2010-05-03 | 2013-01-03 | Mindspeed Technologies, Inc. | Rate matching and de-rate matching on digital signal processors |
US8549376B1 (en) * | 2007-12-13 | 2013-10-01 | Rockwell Collins, Inc. | Vector turbo codes |
US9392616B2 (en) | 2006-10-31 | 2016-07-12 | Telefonaktiebolaget Lm Ericsson (Publ) | HARQ in spatial multiplexing MIMO system |
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JP4689316B2 (en) * | 2005-03-28 | 2011-05-25 | 富士通株式会社 | Error detection method of control information for transmitting downlink channel of radio communication and mobile terminal |
US7764743B2 (en) * | 2005-08-05 | 2010-07-27 | Alcatel-Lucent Usa Inc. | Methods of channel coding for communication systems |
EP1987638A4 (en) * | 2006-02-13 | 2011-09-21 | Nokia Corp | Apparatus, method and computer program product providing selection of packet segmentation |
US20070189160A1 (en) * | 2006-02-14 | 2007-08-16 | Itamar Landau | Method and system for randomized puncturing in mobile communication systems |
US8493834B2 (en) * | 2006-08-28 | 2013-07-23 | Qualcomm Incorporated | Content-adaptive multimedia coding and physical layer modulation |
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EP1986364A1 (en) * | 2007-04-25 | 2008-10-29 | Mitsubishi Electric Information Technology Centre Europe B.V. | Method and device for allocating, by a telecommunication device, at least a first and a second consecutive channel elements of a group of channel elements of a channel resource to a destination |
JP2008311869A (en) * | 2007-06-13 | 2008-12-25 | Telefon Ab L M Ericsson | Rate matching device and method, de-rate matching device and method, communicator, program and record medium |
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US8392808B2 (en) | 2007-07-30 | 2013-03-05 | Marvell International Ltd. | Rate matching for a wireless communications system |
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US8397121B2 (en) * | 2007-12-17 | 2013-03-12 | Electronics And Telecommunications Research Institute | Decoding method and apparatus of retransmission communication system |
US20110197103A1 (en) * | 2007-12-17 | 2011-08-11 | Electronics And Telecommunications Research Institute | Decoding method and apparatus of retransmission communication system |
US8516353B2 (en) | 2008-05-09 | 2013-08-20 | Marvell International Ltd. | Symbol vector-level combining receiver for incremental redundancy HARQ with MIMO |
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Also Published As
Publication number | Publication date |
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EP1911165B1 (en) | 2015-03-04 |
WO2007019012A1 (en) | 2007-02-15 |
JP2009504086A (en) | 2009-01-29 |
KR101280144B1 (en) | 2013-06-28 |
EP1911165A1 (en) | 2008-04-16 |
CN101233692A (en) | 2008-07-30 |
US20070030917A1 (en) | 2007-02-08 |
KR20080040698A (en) | 2008-05-08 |
CN101233692B (en) | 2013-02-13 |
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